油门踏板降档开关在需要时提供更快的通过速度。
An accelerator pedal kickdown switch provided faster passing when needed.
脚踏板和键盘开关替代了鼠标按键。
A foot-pedal or keyboard switch then replaces the click of a mouse button.
在这种情况下，真空释放阀和制动灯开关都有刹车踏板的运动控制。
In this case, both the vacuum release valve and the stoplight switch are actuated by movement of the brake pedal.
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